10 Best Cordless Angle Grinders 2025 in the United States

The Milwaukee 2880-20 M18 FUEL Cordless Angle Grinder is a well-rounded tool designed for various grinding tasks, making it a solid choice for both DIY enthusiasts and professionals. With its brushless motor, this grinder offers an impressive no-load speed of up to 8,500 RPM, ensuring efficiency in cutting and grinding applications. It operates on an 18V battery, which is compatible with all M18 batteries, providing flexibility for users who already own Milwaukee tools.

One of the standout features is the Electronic Clutch that protects against kickback, enhancing user safety during operation. Additionally, it includes overload protection to extend the motor's life, making it a reliable investment over time. The anti-vibration side handle is another plus, contributing to user comfort, especially during prolonged use.

However, there are a couple of considerations. The grinder is sold as a tool only, meaning you will need to purchase the battery separately if you don’t already have one. This can add to the initial cost for new users. Also, while it is relatively lightweight at around 5 pounds, some users may still find it a bit bulky for extended overhead work. In terms of ergonomics, its compact design helps, but users looking for a more maneuverable option may want to try out other models. The 5-year warranty is a reassuring factor, indicating Milwaukee's confidence in the product's durability.

The Makita XAG04Z 18V LXT® Lithium-Ion Brushless Cordless Angle Grinder is a solid choice for users looking for a dependable and efficient tool. One of its standout features is the BL Brushless Motor, which eliminates carbon brushes, allowing the motor to run cooler and more efficiently, thereby extending its lifespan. This grinder also offers Automatic Speed Change technology, which adjusts the speed and torque during use to maintain optimum performance, and Active Feedback-sensing Technology (AFT) that turns off the motor if the wheel's rotation is suddenly forced to stop, enhancing safety.

The no-load speed of 8500 RPM is suitable for a range of applications. It accommodates disc sizes of 4-1/2” and 5”, offering flexibility depending on the job requirements. With a weight of 4.8 pounds, it strikes a good balance between sturdiness and ease of handling. Users will appreciate the ergonomics, as the tool is designed to be comfortable for extended use.

However, it's important to note that the product does not include batteries, which means an additional purchase is necessary if you don't already own compatible batteries. Additionally, beginners might find the need for buying separate batteries and chargers a bit inconvenient. Its robust safety features, efficient motor, and high performance make it a reliable option for both professional and DIY users.

The Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless Grinder is a powerful tool that generates 11A corded power, making it ideal for heavy-duty applications. With an 18-volt battery and a brushless motor, it offers efficient performance and longer life. The grinder's low profile, flathead design is particularly beneficial for accessing tight spaces where traditional grinders may not fit. Its RAPIDSTOP brake is a notable safety feature, stopping most wheels in less than 2 seconds, enhancing user safety during operation.

Weighing just 1.2 pounds, it is lightweight, reducing user fatigue and making it easier to handle for extended periods. However, the tool is sold as 'tool-only,' meaning the battery is not included, which could be an additional cost for users who do not already own compatible batteries. The maximum rotational speed of 8500 RPM is suitable for various grinding tasks, but may not be the highest available in the market.

The ergonomics of the paddle switch and the no-lock design add convenience and control, although some users may prefer a locking feature for continuous operation. This tool would be particularly beneficial for professionals and DIY enthusiasts who need a compact, powerful grinder for challenging projects.